Next Article in Journal
Recent Advances of Plasmonic Organic Solar Cells: Photophysical Investigations
Next Article in Special Issue
Multi-Alkenylsilsesquioxanes as Comonomers and Active Species Modifiers of Metallocene Catalyst in Copolymerization with Ethylene
Previous Article in Journal
Improving Photovoltaic Properties of P3HT:IC60BA through the Incorporation of Small Molecules
Previous Article in Special Issue
High Temperature, Living Polymerization of Ethylene by a Sterically-Demanding Nickel(II) α-Diimine Catalyst
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Polymers 2018, 10(2), 122;

The Dispersion of Pulp-Fiber in High-Density Polyethylene via Different Fabrication Processes

Key Lab of Bio-based Material Science Technology of Education Ministry, Northeast Forestry University, Harbin 150040, China
CSIRO Manufacturing, 75 Pigdons Road, Waurn Ponds, VIC 3216, Australia
Author to whom correspondence should be addressed.
Received: 13 December 2017 / Revised: 17 January 2018 / Accepted: 24 January 2018 / Published: 26 January 2018
(This article belongs to the Special Issue Olefin Polymerization and Polyolefin)
Full-Text   |   PDF [3896 KB, uploaded 26 January 2018]   |  


In this study, a pulp beating machine was used to premix the pulp fibers with high density polyethylene (HDPE) particles in water. The wet or pre-dried pulp fiber/HDPE mixture was then melt-compounded by a twin screw extruder. For further improving the dispersion of pulp fiber, some mixture was forced to pass through the twin-screw extruder twice. The resulting mixture was compression molded to the composite. The fiber distribution was observed by the aid of an optic and scanning electron microscope. The mechanical and rheological properties and creep resistance of the composites were characterized. Test results demonstrate that when the wet pulp fiber/HDPE mixture was subjected to pre-pressing and oven drying prior to extrusion compounding, the resulting composites exhibited homogeneous fiber distribution, superior flexural property, creep-resistance, and high storage modulus. Particularly, its flexural strength and modulus were 57% and 222% higher, respectively, than that of the neat HDPE, while the composites prepared without pre-dried were 19% and 100% higher, respectively. Drying the wet mixture in advance is more effective than re-passing through the extruder for improving the fiber dispersion and composite performance. View Full-Text
Keywords: pulp fiber; polyethylene; composites; fiber dispersion; drying pulp fiber; polyethylene; composites; fiber dispersion; drying

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Yang, X.; Wang, G.; Miao, M.; Yue, J.; Hao, J.; Wang, W. The Dispersion of Pulp-Fiber in High-Density Polyethylene via Different Fabrication Processes. Polymers 2018, 10, 122.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top